Mammalia - Artiodactyla - Merycoidodontidae

Alternative combination: Promerycochoerus vantasselensis

Full reference: O. A. Peterson. 1907. Annals of Carnegie Museum 4(3)

Belongs to Merycochoerus according to B. Lander 1998

Sister taxa: Merycochoerus carrikeri, Merycochoerus chelydra, Merycochoerus magnus, Merycochoerus matthewi, Merycochoerus pinensis, Merycochoerus proprius, Promerycochoerus superbus

Type specimen: Its type locality is Van Tassel (Lower), which is in a Harrisonian terrestrial horizon in Wyoming

Ecology: ground dwelling herbivore